Antiskidding device for automobile-wheels.



L DAYIDSU'T'L ANTISKIDDING DEVICE FOR AUTO MOBILE WHEELS;

APPLIGATION mum oo'r. 28,1913.

1 9 1 3;?59} Pamnmfil Jam 5, 19115.

WITNESSES: Y find/W LOUIS nav nson, OF NEW roan, N. Y.

- ANTISKIIDDING DEVICE FOR AUTOMOBILE-WKEELS.

Specification of Letters Retent- Patented Jan. 5, 15315.

Application filed October as, 1913. Serial No. 797,816.

venting skidding of automobile wheels, and

has for its objcctto provide the usual fricticnal device which isemployed to prevent skidding. with means whereby the same may bewithdrawn from operative position when not required and maintained ininoperative position, or niav be applied to operative position. whendesired while the car is in use, and preferably by devices which areunder the control of the chauffeur.

One embodiment of my invention is illus-' trated in the accompanyingdrawings, wherein, I

Figure 1 illustrates an elevation of an automobile wheel having myinvention applied thereto; Fig. 2 is an enlarge detail View thereof,parts being broken away, and the friction devices being shown inoperative-position; and. Fig. 3.is a view similar to Fig. 2-, thefriction devices being withdrawn from operative position.

In accordance with my in ention the automobile wheel A has the usualpneumatic tire a, which is conventionally illustrated. Frictionaldevices are employed to prevent skidding cf the wheel, and these may ifdesired consist of the usual chains B.

According to my invention means are provided whereby frictional devices,such as the chains B, may be withdrawn from op-' erative position whentheir use is not re-.'

quired, and particularly whereby the same may when they are needed bepromptly applied in operative position without stopping the car orinterfering with its use, and

without leaving his seat.

The particular method of. carrying my invention into effect which isillustrated in the ccompanying drawings, and which isthe best method nowknown to me of accomplishing this purpose, employs a carrier for thechains which is in the-form of a ring.

lettered Sf thcserings, two are empl ac chains C C. anothe respective emare attached thereto. "These rings are split at o, and are spring rings,to Wit, their normal tendency is to draw the chains toward the hub ofthe wheel. The split in the ring is provided fer he purpose of enauliugthe ring to be expanded whereby the chains B are drawn a 'ay from thewheel and out of operative. pcsition, and thereby the chains are removedfrom underneath the wheel so that the wheel may freely revolve clear ofthe said chains, and the split rings then occupying a circle of greaterdiameter than the wheel, would have atendency to hit the ground but forthe fact that the expansion thereof has separatedthe ends ofthc rings 1and removed the same from contact with the ground.v The rings C C areillustrated in full lines in their inward pcsition in Fig. 1, in whichposition the chains B as illustrated are in operative relation to thetire. The

. outward or expanded pcsiticn cf the rings is indicated in dotted linesin Fig. 1, and in this position, as seen in cross-section F 3, thechains B are out of contact with the wheel, so that the wheel mayrevolve free thereof. The split rings C C possess many advantages forthepurpose for which they are employed, but other means may be foundavailable to use for carrying the friction devices, and indeed-suchdevices while a controlling rod d which is illustrated as pivotedthereto, and which extends to a point-where it may be Within reach ofthe chau'tleur. I have not illustrated the handle gitudinal movement ofthis rod, as I have not deemed it necessary, inasmuch as the saidconstruction is well known and may consist of an. ordinary speedcontrolling lever as used upon automobiles to which the end of thei'od(Zf may be pivoted. A suspender E is'provided which is in the form of abail and has an extension 6 which when the suspender E is in itsinnermost position passes adjacent to the hub a On its inner end saidextension has a stud 6 which is Within the slot (Z. Rotation of the diskD causes the stud e to ride to the outer end of said slot, therebyelevating the sus- .by which the chauffeur may control the lonponder E.In its outward movement said suspender engages the split rings C C byits ledges e and carries the same out with it to a point where the chainB is free of contact with the tire as illustrated in Fig. 3. At thispoint the split rings will ride down the beveled outer face of saidledges, as indicated in Fig. 3, whereby the chain B will be drawn tautand rattling will be prevented. When it'is desired to apply the chains,a movement of the handle control-v ling the rod al will rotate the diskD, causing the studs 6 to ride down to the inner end of the slots d, andcarrying the suspender E entirely out of contact with the split rings. CC as indicated in Fig. '2. Here-it will be seen that the supports C Cowing "to their tendency to draw toward the middle of the wheel, havedrawn thechains B tightly around the periphery of the tire, thesuspenders E having passed entirely'out of contact with the supports,-and the latter arefreeto revolve with the wheel, permittingithe chains Bto creep thereon.

Preferably devices willbe provided for thepurpose .of locating the splitrings C C in position "with relation to the Suspender devices, so thatthe split 0 will come into proper position. andfsuch devices may welltake the form of a recess 0 upon the spring ring, which is adapted to.receive a similar lug (2 upon the'inside of the Suspender E.

Av cover or dust'shield F may be conveniently provided, for the. purposeof protecting the cam disk D and associated parts from dust,etc. This'is not seen in Fig. 2, which is a view taken from the right hand side ofFig. l. I

It is, frequently desired to apply antiskidding devices to an automobilewheel hurriedly, due to'the presence'of dry sand, or a wet or greasyroad, or of any causes which produce skidding of the car. According tomy invention such friction devices whether consisting of chains orotherwise, may be quickly applied without diiiicultv or specialpreparation by simply rotating the disk D by means of the control rod orchain d. which may be actuated by the chauffeur from his seat. Thispermits the spring rings C C to contract and draw inwardly. carryingwith them the chains B and applying the same in position at once. Inview of the fact that immediately upon the application of the saidchains they hegin turning with the wheel, carrying the split rings withthem. the said rings will very quickly pass to their innermost position.and will accomplish the pu ose for which such devices are des gned. Thewithdrawal of the frictional devices such as the chains B from operativeposition, is usually not desired to be done hurriedly, and indeed maywell wait until the car can be jacked up so as totake theweight from thetires.

arranged peripherally of a wheel of an au- Should however it bedesiredto remove the said frictional devices to inoperative posi- 'tion,pressure upon the rod d will cause the rings to pass to outwardposition, carrying thechains to the position illustrated in Fig.

The details employed by me in applying my inventionin actual practicemayahe varied within the limits of the appended claims, andd do notconcedethat my invention isli'mi-t e' d to theparticular mechanicaldetails employed. For instance the particular variety of frictiondevices is not es sential, nor is it essentialthat the particularsuspending devices or supports illustrated should be employed; nor thatthe rotary disk shouldbe used as the means for moving the chains toinoperative position. These mechanical ap iiliances and others may hechanged and equivalent devices used therefor, without departing from theinvention as the same is claimed in the accompanying claims;

l/Vhat I claim is:-

1. An anti-skidding device for automobiles .comprising a series offrictional devices arranged 'at intervals around the tire of anautomobile wheel hut. disconnectcd from said wheel, means forSlliilllllflnQOllSlV moving said devices either out of or to operativeposition relative to said the An anti-skidding device forautomobilescomprising a series of frictional devices arranged atintervals around the tire of an automobile wheel but disconnected fromsaid wheel, means for simultaneously moving saiddevices either out of orto operative position relative to said tire, and a connection extendingtherefrom to a point. convenient'to the chauffeur for controlling thesame.

An anti-skidding' device for automobiles comprising a series of chainsarranged at intervals crosswise of the tread of the automohilew hcel hutdisconnected from said wheel, and a support for said chains movahletoward and from the axis of the wheel and adapted when moved to move allsaid chains into or out of operative position with relation to thewheel.

l. An anti-skidding device for automobiles comprising a series of chainsarranged at intervals crosswise of the trea d of the automobile wheelbut disconnected from said wheel, movable supports for the said chainsadapted to move all said chains simultaneously-into or, out of operativeposition. and means for adjusting said supports radially with respect tosaid wheels, whereby said chains are simultaneously moved into orout ofoperative position with respect to the wheels according to saidadjustment.

An anti-skidding device for automohiles comprising a series offrictional devices tomobile but disconnected from said wheel, movablesupports therefor adapted to move a plurality of said devicessimultaneously into or out of operative position, and means Ananti-skidding device for automo biles comprising a series of chainsarranged peripherally of a Wheel of an automobile but disconnected fromsaid Wheel, movable spring carriers for said chains, adapted to move thesame into or out of operative position relative to said wheel, and meansfor adjusting said carriers.

7. An anti-skidding device for automobiles comprising a series of chainsarranged peripherally of a wheel of an automobile,

movable annular spring carriers for said chains, normally drawing saidchains toward said wheel and adapted according to movement to move allsaid chains into or out of operative position, means for moving saidsprings away from tlieaXis of said wlieelwhereby said chains are movedout of contact with said wheel, said means adapted according toadjustment to permit said chains to engage said wheel.

8.- An anti-skidding device for automobiles comprising a series offriction devices arranged peripherally of a wheel of an automobile butdisconnected therefrom, supports for said devices movable radially,

which are adapted when moved to move said devices into or out ofoperative posit on with respect to said wheel, said friction devicesbeing free from said supports when'inoperative position whereby whensaid devices are in said operative position they are free to turn withsaid wheel.

- 9. An anti-skidding device for automobiles comprising a series ofconnected chains arranged peripherally of a wheel of an au- 5 tomobile,movable supports for said chains adapted when moved to, simultaneouslyadjust all said chains to and from operative position with respect tothe wheel, and said chains being disconnected from said supports wherebywhen said chains are in o-p-',

erative position they are free to turn with said wheel.

10. An anti-skidding device for automobiles comprising a series ofchains arranged peripherally of a wheel of said automobile, a splitspring ring secured to said chains and normally tending to d aw saidchains into operative position with relation to said wheel, and meansfor expanding said ring and holding the same in expanded position'whereby said chains are removed from operative position. .7

11. Tire chains for automobile wheels, split spring rings to which theends of said chains are attached, suspenders for said rings, and meansfor moving said suspenders radially, and controlling. means there- I forextending outside ofthe wheel, said suspenders adapted to hold saidrings maintained in expanded position, andsaidrings free to turn when intheir inner position.

12. Tire chains for automobile Wheels, split spring rings to which theends of said chains are attached, suspenders for said rings, a rotarydisk having cam slots, studs on said suspenders entering; said slots,andmeans for rotating said disk.

13. An anti-skidding device for automobile tires comprisinga series offriction devices arranged transversely of the tread of a wheel butdisconnected from said wheel,

and means for moving said' fiiction devices simultaneously into and outof operative position.

14. Anti-skidding devices for automobiles comprisinga pluralityv oftirechains arranged transversely of the tread of a wheel butdisconnected from said wheel, spring carriers for said chains normallytending to draw said chains to operative posit means for simultaneously.moving all said chains into or out of operative position, said chainsbeing free from said moving means when in operative position wherebythey may turn with said wheel,

15. An anti-skidding device for automobiles comprising a series, of tirechains arranged peripherally of wheel. of an auto mobile, supports forsaid chains adapted to move the same radially with respect to the wheelwhereby they are brought into inoperative position or removed therefrom,controlling devices for adjusting the position of said supports, andmeans in said supports whereby the chains are extended when in inoperative position.

16. An anti-skidding device for automo biles comprising a series ofchains arranged peripherally of a wheel. of an automobile, split springrings secured-to said chains and normally tending to draw said chains tooperative position with relation to said wheel, a series of suspendersadapted to move said ion, and

rings so as to withdraw said chalns. from op-.

ridedown saidbeveled faces and draw the vchains taut.

1'1 An anti-skidding biles compr sing a series oi friction devicesarranged peripherally of a wheel of'an automobile. split spring IlIlSISfor support ng said triction'devices. said rings being free to revolvewith said, wheel when the chains are in operative position. devices forexpanding.

said rings and controlling: means therefor and centering devices locatedbetween said' rings and said expanding devices whereby ioo . 12a devicefor automo-.

the Wings are caused to be expanded with the spl thereof in desiredposition.

1T8. Tire chains for' automobile wheels, split spring rings to which theends of said chains are attached, suspenders for said r1ngs, lugs onsaid suspenders adapted to same and permit them to turn with the wheel,and'said friction devices being adapted when'moved' by said supportsouto'f 0p.

erative position to be free of the said, wheel.

' v 20. Anti-skidding devices for automobile wheels comprising a seriesof connected friction. devices disconnected from a wvheel, means forsimultaneously moving all said devices toward or from the wheel and intoor out of operative position, said devices beingvdisconnected from saidmoving means so that they are free to turn with said \vheel when inoperative position and means under the control ot' the chaufl'eurforoperating such moving means.

21. Anti-skidding devices for automobile wheels comprising a series ofconnected tire chains, disconnected from a wheel, movable supports theefor by which said chains may all be simul .aneously and freely movedinto or out of operative position as said supports are moved, saidchains being detached from said supports, whereby they are free to turnwith the wheel when in operative position, and a lever convenient to thechaulfeur controlling the movement of said supports, whereby thechauffeur may apply said antiskidding devices or release same asrequired without leaving his seat.

In witness whereof, I have hereunto signed my name in the presence oftwo subscribing witnesses.

LOUIS DAVIDSON.

\Vitnesses HEXRY M. TURK, FRED VI-LITE.

